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DedPeter [7]
3 years ago
12

How can addition properties help me add whole numbers

Mathematics
1 answer:
Bas_tet [7]3 years ago
3 0

Answer:

There are four addition properties that help to add whole numbers :

For any  whole number a, b, and c ;

1. <u>Closure property of addition </u>-   a+b

For example:

2+3=5

4+3=7

We can conclude that if we add any two whole number , we get another whole number.

2. <u>Associative property of addition</u>- when any whole number or variable are added, then that can be grouped in different way without changing result

a+(b+c)=(a+b)+c

For example:  

2+(3+4)=(2+3)+4

3.<u> </u><u>Commutative property of addition</u>- when any  whole number or variable are added, then the order changed without changing the result.

a+b=b+a

For example: 2+3=3+2

4. <u>Identity property of addition</u>- when 0 is added to a whole number or variable , the result is the same variable or number.

a+0=0+a

For example: 3+0=0+3

0 is called an Identity for addition of whole numbers.


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A town in east Texas received 10 inches of rain in two DAYS. If it kept raining at this rate for a 31 day month, how much rain d
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<h3>Answer: 155 inches</h3>

This is equivalent to approximately 12.917 feet.

===================================================

Work Shown:

(10 inches)/(2 days) = (x inches)/(31 days)

10/2 = x/31

10*31 = 2*x ... cross multiply

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Keep in mind that this water is being drained on a fairly continuous basis. This means that not all of the water is sticking around (we'd hope not anyway) at the same moment in time.

Note: 155 inches = 155/12 = 12.917 feet approximately.

--------------------------

Alternative method:

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